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Brigden, K., Labunska, I., Johnston, P and, Santillo, D. (2012) Organic Chemical and Heavy Metal Contaminants from Communal Wastewater Treatment Plants with Links to Textile Manufacturing, and in River Water Impacted by Wastewater from a Textile Dye Manufacturing Facility, in China. Technical Report, Greenpeace Research Laboratory, 7.

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• TITLE: Rapid Adsorption of Crystal Violet onto Magnetic Zeolite Synthesized from Fly Ash and Magnetite Nanoparticles

  AUTHORS: Olusola S. Amodu, Tunde V. Ojumu, Seteno K. Ntwampe, Olushola S. Ayanda

  KEYWORDS: Adsorption, Crystal Violet Dye, Fly Ash, Magnetic Zeolite, Kinetics, Isotherm

  JOURNAL NAME: Journal of Encapsulation and Adsorption Sciences, Vol.5 No.4, December 7, 2015

  ABSTRACT: This work reports the adsorption of crystal violet (CV) dye onto magnetic zeolite (MZ) nanoparticles, synthesized by direct fusion of fly ash (FA) and magnetite particles. The synthesised MZ showed high capacity for CV dye adsorption, removing 95% of the dye at an equilibrium adsorption time of 10 min and 25℃. The effects of adsorbent dosage, dye concentration, and pH, on adsorption were evaluated. Adsorption data were best described by the Langmuir adsorption isotherm (R2 = 0.9986), while the adsorption kinetics was best fitted by the pseudo-second-order kinetic model (R2 = 0.9999). Application of the MZs synthesised from inexpensive resources such as FA could ensure the sustainability and cost effectiveness of treating industrial effluent containing basic dyes, especially effluent from the textile industries.